﻿/*
 * RegExpress
 * 
 * Copyright (c) 2010, Daniel McGaughran
 * 
 * Licensed under the Apache Licence, Version 2.0 (the "Licence");
 * you may not use this file except in compliance with the Licence.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the Licence is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the Licence for the specific language governing permissions and
 * limitations under the Licence.
 * 
 */

using System;


namespace RegExpressViewModel
{
	public static class ViewModelExtensions
	{

		public static bool UpdateToVar<T>(this T value, ref T variable, Action<string> notifyPropertyChanged,
			string propertyName) where T : class
		{
			if (variable == value) return false;

			variable = value;
			notifyPropertyChanged(propertyName);
			return true;
		}


	}
}
